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responder/docs/source/tour.rst
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2018-10-15 08:56:02 -04:00

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Feature Tour
============
Class-Based Views
-----------------
Class-based views (and setting some headers and stuff)::
@api.route("/{greeting}")
class GreetingResource:
def on_request(req, resp, *, greeting): # or on_get...
resp.text = f"{greeting}, world!"
resp.headers.update({'X-Life': '42'})
resp.status_code = api.status_codes.HTTP_416
Background Tasks
----------------
Here, you can spawn off a background thread to run any function, out-of-request::
@api.route("/")
def hello(req, resp):
@api.background.task
def sleep(s=10):
time.sleep(s)
print("slept!")
sleep()
resp.content = "processing"
GraphQL
-------
Serve a GraphQL API::
import graphene
class Query(graphene.ObjectType):
hello = graphene.String(name=graphene.String(default_value="stranger"))
def resolve_hello(self, info, name):
return "Hello " + name
api.add_route("/graph", graphene.Schema(query=Query))
Built-in Testing Client (Requests)
----------------------------------
We can then send a query to our service::
>>> requests = api.session()
>>> r = requests.get("http://;/graph", params={"query": "{ hello }"})
>>> r.json()
{'data': {'hello': 'Hello stranger'}}
Or, request YAML back::
>>> r = requests.get("http://;/graph", params={"query": "{ hello(name:\"john\") }"}, headers={"Accept": "application/x-yaml"})
>>> print(r.text)
data: {hello: Hello john}
OpenAPI Schema Support
----------------------
Responder comes with built-in support for OpenAPI / marshmallow::
import responder
from marshmallow import Schema, fields
api = responder.API(title="Web Service", version="1.0", openapi="3.0")
@api.schema("Pet")
class PetSchema(Schema):
name = fields.Str()
@api.route("/")
def route(req, resp):
"""A cute furry animal endpoint.
---
get:
description: Get a random pet
responses:
200:
description: A pet to be returned
schema:
$ref = "#/components/schemas/Pet"
"""
resp.media = PetSchema().dump({"name": "little orange"})
::
>>> r = api.session().get("http://;/schema.yml")
>>> print(r.text)
components:
parameters: {}
schemas:
Pet:
properties:
name: {type: string}
type: object
info: {title: Web Service, version: 1.0}
openapi: '3.0'
paths:
/:
get:
description: Get a random pet
responses:
200: {description: A pet to be returned, schema: $ref = "#/components/schemas/Pet"}
tags: []
HSTS (Redirect to HTTPS)
------------------------
Want HSTS?
::
api = responder.API(enable_hsts=True)
Boom.